TPC-C is a benchmark used to evaluate the performance of database management systems. It simulates a complete online transaction processing (OLTP) environment, focusing on the performance of a system under heavy load. The benchmark involves a set of predefined transactions that represent typical business operations, such as placing orders and processing payments. The TPC-C benchmark measures various metrics, including transactions per minute and response times, to assess how well a database can handle concurrent users and transactions. It is widely used by organizations to compare the performance of different database systems and to ensure they meet specific performance requirements.